Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 97 · 40 questions

What you do (Shadows point away from the Sun): 1. Stand the stick upright in the ground in an open sunny place. 2. Every hour, mark the tip of the shadow with chalk and write the time. 3. Measure the length of each shadow. 4. Wear a cap and never look straight at the Sun.

1. 1.🔦 Is clean water opaque, translucent or transparent? (a) translucent (b) opaque (c) transparent
2. 2.True or false: yeast is needed for the shadow clock. (a) True (b) False
3. 3.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a balloon (b) a clock to check (c) a straight stick (d) a sunny open place
4. 4.🛟 What should you wear for a long time in the hot sun? (a) nothing on your head (b) a cap or hat (c) a raincoat (d) a woollen sweater
5. 5.🔦 Which of these is translucent? (a) a book (b) a steel plate (c) frosted glass (d) your hand
6. 6.📘 Why does a shadow form? (a) the ground is dark (b) light bends round it (c) an object blocks light (d) the object is cold
7. 7.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the stick kept upright is what we measure. (a) False (b) True
8. 8.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the same stick”? (a) we change it (b) we keep it the same (c) we measure it
9. 9.🧺 Which of these is not needed for the shadow clock? (a) a straight stick (b) a sunny open place (c) a magnet (d) chalk to mark shadows
10. 10.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) round (b) short (c) long (d) missing
11. 11.🧺 Which of these is not needed for the shadow clock? (a) a straight stick (b) a sunny open place (c) turmeric powder (d) a clock to check
12. 12.🔦 Is tissue paper opaque, translucent or transparent? (a) transparent (b) translucent (c) opaque
13. 13.🌍 Why does the stick’s shadow move during the day? (a) the stick walks (b) Earth keeps spinning (c) the stick grows (d) the ground slides
14. 14.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) turmeric powder (b) a clock to check (c) chalk to mark shadows (d) a sunny open place
15. 15.🔮 Predict: on a fully cloudy day, the sundial ___. (a) shows two times (b) works better (c) does not work well (d) runs faster
16. 16.🛟 While watching shadows outdoors, what must you never do? (a) wear a cap (b) sit in the shade (c) mark with chalk (d) look straight at the Sun
17. 17.🔦 Is a steel plate opaque, translucent or transparent? (a) translucent (b) transparent (c) opaque
18. 18.🔦 Which of these is translucent? (a) tissue paper (b) air (c) a wooden board (d) a book
19. 19.🧺 Do we need a clock to check for the shadow clock? (a) not needed (b) needed
20. 20.True or false: a book is opaque. (a) True (b) False
21. 21.⚖️ Fair test — how does the shadow of a stick change through the day? What do we do with “the same spot”? (a) we measure it (b) we keep it the same (c) we change it
22. 22.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the time of day is kept the same. (a) False (b) True
23. 23.True or false: butter paper is opaque. (a) True (b) False
24. 24.🔍 Which is the odd one out? (a) clear glass (b) air (c) clear plastic film (d) a steel plate
25. 25.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: shadow length is the one thing we change. (a) False (b) True
26. 26.🔦 Is a brick opaque, translucent or transparent? (a) translucent (b) transparent (c) opaque
27. 27.🧺 Which of these is needed for the shadow clock? (a) a balloon (b) a straight stick (c) a mirror (d) a battery cell
28. 28.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same spot is what we measure. (a) False (b) True
29. 29.🧺 Do we need a mirror for the shadow clock? (a) needed (b) not needed
30. 30.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same spot is kept the same. (a) True (b) False
31. 31.🔍 Which is the odd one out? (a) oily paper (b) a steel plate (c) a wooden board (d) a brick
32. 32.🔍 Which is the odd one out? (a) clear plastic film (b) a book (c) a wooden board (d) your hand
33. 33.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) yeast (b) a clock to check (c) a sunny open place (d) a straight stick
34. 34.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) chalk to mark shadows (b) a straight stick (c) a sunny open place (d) a battery cell
35. 35.True or false: turmeric powder is not needed for the shadow clock. (a) True (b) False
36. 36.🧺 Do we need a straight stick for the shadow clock? (a) not needed (b) needed
37. 37.True or false: a clock to check is not needed for the shadow clock. (a) False (b) True
38. 38.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is the one thing we change? (a) the same spot (b) the stick kept upright (c) the time of day (d) shadow length
39. 39.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) west (b) east (c) north (d) up
40. 40.True or false: a magnet is not needed for the shadow clock. (a) True (b) False

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